Which event takes place during atrial diastole?
Blood fills the left ventricle and empties the right.
Both the left and right atrial chambers fill with blood.
Blood fills the right atrium and empties the left.
Both the left and right atria are emptied of blood.
The Correct Answer is B
A. Blood fills the left ventricle and empties the right: This refers to the ventricles, not the atria, so it is incorrect in the context of atrial diastole.
B. Both the left and right atrial chambers fill with blood: During atrial diastole, the atria relax and fill with blood from the veins (superior/inferior vena cava for the right atrium and pulmonary veins for the left atrium).
C. Blood fills the right atrium and empties the left: This is incorrect because both atria fill with blood during atrial diastole.
D. Both the left and right atria are emptied of blood: This describes atrial systole (contraction), not diastole.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Pharynx: The pharynx is a part of the throat, but the vocal folds are not located here.
B. Epiglottis: The epiglottis is a flap of tissue that prevents food from entering the trachea, but it is not where the vocal folds are located.
C. Trachea: The trachea is the windpipe, but the vocal folds are not present here.
D. Larynx: The vocal folds (or vocal cords) are located in the larynx (voice box), which is responsible for sound production.
Correct Answer is C
Explanation
A. Eosinophil cell: Eosinophils are granular leukocytes involved in allergic reactions and parasitic infections.
B. Polymorphonuclear cell: This refers to neutrophils, which are granular leukocytes with multi-lobed nuclei.
C. Monocyte cell: Monocytes are agranular leukocytes that can differentiate into macrophages and are involved in phagocytosis.
D. Basophil cell: Basophils are also granular leukocytes involved in immune responses and releasing histamine.
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